CVE-2026-5105

MEDIUM

Totolink A3300R Parameter cstecgi.cgi setVpnPassCfg command injection

Title source: cna

Description

A vulnerability was detected in Totolink A3300R 17.0.0cu.557_b20221024. The affected element is the function setVpnPassCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. Performing a manipulation of the argument pptpPassThru results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used.

References (5)

[Vdb Entry, Technical Description] https://vuldb.com/vuln/354130

[Signature, Permissions Required] https://vuldb.com/vuln/354130/cti

[Third Party Advisory] https://vuldb.com/submit/779143

[Exploit] https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_pptpPassThru_cmd_inject

View Exploit ZIP pw:eip

[Product] https://www.totolink.net/

Scores

CVSS v3 6.3

EPSS 0.0216

EPSS Percentile 84.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-74 CWE-77

Status published

Products (2)

Totolink/A3300R 17.0.0cu.557_b20221024

totolink/a3300r_firmware 17.0.0cu.557_b20221024

Published Mar 30, 2026

Tracked Since Mar 30, 2026